pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8928-REDRIVAL.ps) >>/Users/jc/w/tmp/Tune-8928-get.log 2>&1" returned status 256
http://back.numachi.com:8000/dtrad/abc/REDRIVAL.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_89280.log 140992 Log file, useful mostly for debugging
Coll_89281.log 308499 Log file, useful mostly for debugging
Tune-8928-REDRIVAL.abc 144 ABC music file with the extracted tune(s)
Tune-8928-REDRIVAL.ps 32693 PostScript
Tune-8928-REDRIVAL.txt 144 Plain-text file with the extracted tune(s)
Tune-8928-get.log 4120 Log file, useful mostly for debugging
Tune-89288-get.log 3494 Log file, useful mostly for debugging
These files should be available for 24 hours.